Gas-burner.



0. .OESTERLEN & K. (L'MULLER.

GA BURNER." APPLICATION HLED APR.1,1915.

Patented Dec. 21, 1915.

SfP-AEENT anion.

OTTO oss'rnnnan AND 'doN nanMfiLLEn, or zwErBnflcKnN. GERMANY.

Gas-BURNER.

specification of Letters Patent.

Patented Dec. 21, 1915.

Application filed April 1, 1915 Serial No. 18,631.

. To all whom may concern:

Be it known that we, OTTO Onsrsnnnr: and KARL CONRAD MiiLLER, subjectsof the King of Bavaria, both residing at Zweibriicken, Palatinate,Bavaria, Germany, have invented certain new and useful Improvements inGas-Burners, of which the following is a specificatiom'referencebeing-hadwhole burner or mixing chamber has to be swung out when put outof work, are

avoided with this invention, the burner being now so constructed thatvonly a small part ,of the burner has to swing out.

As only a part of'the burner has to be removed and can be replaced by aclosing plate during the blast period of a stove, it is poss'ble tobuild the immovable part of the burner in such a way as to obtain thebest conditions for a rapid and most eliicient mixture of gas and air,and also for the best regulation of gas and air admission. The admissionof gas and air is regulated by a conical or otherwise shaped valveplaced in the immovable part of the burner. I

This invention provides therefore an apparatus which is not only aconvenient and practical means of shutting ofi the gas when putting thestove on blast, but as the main part of the burner remains fixed, it ispos-- sible to build this part so as to obtain an efiicient gas and airmixture and at'the same time send quickly large quantities of gas intothe stove where it is completely burned. \Vith this new burner it is notonly easier to change the stove from gas to blast, but also will theheating period be much shorter the efficiency being better than before.

Where as formerly the gases were throttled down before entering thecowper apparatus, where they mixed with the comburent, this inventiontransforms the pressure of the gas current in speed by means of theconical valve which forms a main part of this invention. The high speedof the gas then draws in the necessary combustion air in one or twosteps.

In the drawing: the figure shows a central sectional view of the gasburner. In this swung around the spindle 1? drawing the gas is shownentering the burnerfrom the top, naturally any other position is fromthe position of the main gas pipe;

The outer case a which is strongly supported or suspended in a fixeddistance'oi possible, this depending only the cowper stove carriesinside throughthoshaft d and ribs 0 a con cal valve 17 When vworkingvalve 5 is in the posithe valve b is shown tion marked by dotted lines,so that as can pass from the m chamber 0. Through the special form ofthe valve 1) and the mouthpiece f the twyer 2' to the com ustion flow ofthe gas is changed in velocity. when leaving the casing a and by thisvelocity combustion air is drawn in, primary and secondary combustionair behind the gas outlet. a

In the drawing the primary air is enter-1,

ing through the ring channel 9 while' the necessary secondary air entersbehind the' part h by. channel is, being drawn in either by theaspiration of gas current or'by the chimney draft of the cowper. Movableshuttersfl or m allow the regulation of the air inlets. i

It is important that the burner mouth.- piece 2' is divided into severalparts and that when puttingthe burner out of work a part of-it can beswung out or removed, so

as to close the cowper opening by a plate It is best to combine theremovable part of the burner and this cover plate i as shown on heatingperiod, he closed air tight, the gas is shut off by ad vancing valve,72,, the movable. part is the sketch. At the end of the plate 7 whichis screwed tightly on to the part it. I

An exact regulation of both gas quantity and velocity and therefore ofthe .air quantity thereby drawn in is warranted by the chosen form ofthe conical valve 6. Ordinary valves, gate valves used up to now onburners are inadequate because they get easily choked up with dust andfurther they liberate relatively large sections when opened slightly,whereas the chosen form of and closed by when the cowper stove must tionand also the admission of any amount of gas to the cowper.

The inside of the mouthpiece f and the valve 7) can be cleaned from dustwhich deposits during work by pressing the valve 'on to its seat andturning it around several times.

Should an excess of air be required inside the burner 11 air.can beadmitted bythe valvefb which can be made hollow, the admission beingregulated by a slotted ring a. The gas enters under pressure the easinga and that by the transformation of pressure in velocity combustion airis drawn in. 'Naturally the opposite proceedings are 'possible,,viz.that air is blown in under pressure by the ring channel or the'hollowshaft (1 and thus the gas drawn in. The compressed air could also beintrod ced in the casing a and its static energy changed by acorgesponding form of the burner into dynamic energy, by which then thegas would be d-rawn in either through the ring channel g or the hollow.valve.

. Having now particularly described and v ascertained the natur'eofoursaid invention and in vhat manner the same is to be perform wedeclarethat what we claim is:

If A gas burner for hot blast stovesand ggher heating chambers having acasing with-in a fixed distance of the stove, atwyer for conducting thegas from the casing to the stove, said twyer being divided intosections,

a spindle mounted on the periphery of the twyer, a cover plate and onesaid section mounted on said spindle whereby the plate and section maybe swung about the spindle and the stove supplied with gas or closed tothe atmosphere.

2. A gas burner-for hot blast' stoves andv other heating chambers havinga casing within a fixed distance of the stove, a twyer.

for conducting thegas from the casing to the stove, said twyerbeingdivided into sections, a spindle mounted on the periphery of thetwyer a cover plate and one said section mounted on said spindle wherebythe plate and section may be swung about the spindle and the stovesupplied with gas or c osed to the atmosphere, and a valve within thecasing controlling the flow of gas as described.

3. A gas burner havinga perforated casing, a longitudinal shaft therein,a valve on said shaft to control the flow of gas, a twyer separable intomovable parts, a cover plate fixed on one of said movable parts andhinged on the-periphery of said twyer and adapted to cut off the flow ofgas through

